common: exclude line number from generated file

Line numer may change what causes `git diff` to produce non-empty
output in Scan-Log calls GHA.
It should be enough to monitor total number of CORE_LOG... call and
ordered list of it. Exact position in the file can not be ensured.

Print non-empty log_calls.diff to GHA log

Signed-off-by: Tomasz Gromadzki <tomasz.gromadzki@intel.com>

.github/workflows/scan_log_calls.yml

@@ -24,13 +24,16 @@ jobs:
           echo "length=$(cat log_calls.diff | wc -l)" >> $GITHUB_OUTPUT
         id: log_calls_diff
 
+      - name: Non-empty diff
+        if: steps.log_calls_diff.outputs.length != '0'
+        run: cat ${{ env.WORKING_DIRECTORY }}/log_calls.diff
+
       - name: Upload artifacts
         if: steps.log_calls_diff.outputs.length != '0'
         uses: actions/upload-artifact@v3
         with:
           name: log_calls_diff
-          path: |
-            ${{ env.WORKING_DIRECTORY }}/log_calls.diff
+          path: ${{ env.WORKING_DIRECTORY }}/log_calls.diff
 
       - name: Exit code
         run: |